CN204564098U - A kind of adiabatic reactor of temperature controllable - Google Patents
A kind of adiabatic reactor of temperature controllable Download PDFInfo
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- CN204564098U CN204564098U CN201520154401.2U CN201520154401U CN204564098U CN 204564098 U CN204564098 U CN 204564098U CN 201520154401 U CN201520154401 U CN 201520154401U CN 204564098 U CN204564098 U CN 204564098U
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- Prior art keywords
- cold shock
- reactor
- gas
- reaction
- gas distributor
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- 230000035939 shock Effects 0.000 claims abstract description 58
- 230000001105 regulatory effect Effects 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 abstract description 47
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000006555 catalytic reaction Methods 0.000 abstract description 4
- 238000003889 chemical engineering Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 75
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 16
- 230000015572 biosynthetic process Effects 0.000 description 10
- 238000003786 synthesis reaction Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 239000011261 inert gas Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 229910002091 carbon monoxide Inorganic materials 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 230000002194 synthesizing effect Effects 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 230000018044 dehydration Effects 0.000 description 5
- 238000006297 dehydration reaction Methods 0.000 description 5
- 238000005984 hydrogenation reaction Methods 0.000 description 5
- 230000003197 catalytic effect Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 208000012839 conversion disease Diseases 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000012495 reaction gas Substances 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000009903 catalytic hydrogenation reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model relates to Chemical Engineering Technology apparatus field, is specially a kind of adiabatic reactor of temperature controllable.This adiabatic reactor comprises reactor body (1) cold shock gas distributor (2) and thermometric and cold shock air regulating device (3), it is characterized in that: cold shock gas distributor (2) is arranged on the center of reactor body (1), cold shock gas distributor (2) is arranged on the center of beds, and cold shock gas distributor (2) is connected with thermometric and cold shock air regulating device (3).This adiabatic reactor can solve and in the reaction of gas phase catalysis very exothermic, should bear elevated pressures due to reactor shell bear the problems such as the manufacture to reactor that sharply temperature rise that reaction brings causes, operating safety and production cost again.Use the utility model can solve equipment overall structure complexity, improve production capacity, improve production equipment performance driving economy.
Description
Technical field
The utility model relates to Chemical Engineering Technology apparatus field, is specially a kind of adiabatic reactor of temperature controllable.
Background technology
Along with the development of chemical industry, adiabatic reactor is more widely used.Adiabatic reactor has loaded catalyst large, the multiple advantages such as device structure is relatively simple, weight of equipment is relatively little, but the potential safety hazard of adiabatic reactor is not well solved all the time, in fields such as synthesis gas synthesizing methanol, gas-phase catalytic hydrogenations once because beds overtemperature causes the serious problems of catalysqt deactivation, sintering, the overtemperature of beds also easily causes the potential safety hazard of equipment simultaneously.
Common adiabatic reactor is multiplex in techniques such as the reaction of gas phase hydrogenation, gas-phase dehydration, hydrogen and the methanation of carbon monoxide, synthesis gas synthesizing methanols, and the common feature of this technique is gas phase exothermic reaction.Usually rely on the control that raw material cold shock realizes reaction bed temperature in traditional handicraft, however raw material add and can promote the further propelling of answering chemistry side, the temperature in adiabatic reactor is raised further, reaches molecular balance always.Therefore, there is the security risk of catalyst overtemperature inactivation and the over-temp and over-pressure of reactor apparatus own in current adiabatic reactor.
Summary of the invention
Goal of the invention of the present utility model is for above technology and safety problem, provides that a kind of applicable gas phase hydrogenation, gas-phase dehydration, hydrogen and the methanation of carbon monoxide react, synthesis gas synthesizing methanol, the adiabatic reactor of controllable temperature.The cold shock gas different according to different process selections, by the chain control to beds focus, reach the object accurately controlling reaction bed temperature, thus ensure that the normal use of catalyst, eliminate the equipment explosion risk because overtemperature, superpressure cause.The adiabatic reactor of this controllable temperature has the advantage that catalyst capacity is large, positive reaction conversion ratio is high and safe and reliable simultaneously.
In order to realize foregoing invention object, the utility model adopts following technical proposals:
A kind of adiabatic reactor of temperature controllable, comprise reactor body, cold shock gas distributor and thermometric and cold shock air regulating device, its cold shock gas distributor is arranged on the center of reactor body, thermometric and cold shock air regulating device, cold shock gas distributor is arranged on the center of beds, and cold shock gas distributor is connected with thermometric and cold shock air regulating device.Thermometric and cold shock air regulating device are by the gas regulation valve regulation associated with quench gas temperature.
Described thermometric and cold shock air regulating device regulate the flow of cold shock gas, reach the effect controlling beds hot(test)-spot temperature.
The structure of described cold shock gas distributor is coiler-type or straight pipe type, is arranged on the center of beds, and aperture offered by cold shock gas distributor, makes cold shock gas require that radial direction or tangential distribution are in the reaction zone of reactor according to reaction; Cold shock gas distributor makes cold shock gas pass in reactor by the difference that perforate distributes.
Arrange catalytic bed in described reactor body centre position, cold shock gas distributor is arranged on the center of beds.Point for measuring temperature is arranged on catalytic bed hotspot location place.
Cold shock gas is the unstripped gas of cold conditions or cold conditions inert gas, this reactor product is one or more in the cold conditions product of gaseous state;
The adiabatic reactor of temperature controllable is especially applicable to the reaction of gas phase hydrogenation, gas-phase dehydration, hydrogen and the methanation of carbon monoxide, synthesis gas synthesizing methanol etc.
Good effect of the present utility model is embodied in:
(1), the adiabatic reactor of temperature controllable is applied to gas phase catalysis exothermal reaction process, comprises the reaction of gas phase hydrogenation, gas-phase dehydration, hydrogen and the methanation of carbon monoxide, synthesis gas synthesizing methanol etc.;
(2), the adiabatic reactor of temperature controllable has safe and reliable, that catalyst capacity large, positive reaction conversion ratio is high, thermal balance is effective feature.
(3), can solve and in the reaction of gas phase catalysis very exothermic, elevated pressures should be born due to reactor shell bear the steep temperature rise and the problems such as the manufacture to reactor caused, operating safety, production cost that reaction brings again.
(4), use this reactor can solve equipment overall structure complexity, improve production capacity, improve production equipment performance driving economy.
Accompanying drawing explanation
Fig. 1 is thermometric and cold shock gas mediation system sketch;
Fig. 2 is longitudinal sectional structure chart of the adiabatic reactor of temperature controllable.
Fig. 3 is conventional methanation process flow diagram;
Wherein, 1---reactor body, 2---cold shock gas distributor, 3---thermometric and cold shock gas apparatus for regulating; 4---catalyst, 5---muscle.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the utility model is described in further detail.But this should be interpreted as that the scope of the above-mentioned theme of the utility model is only limitted to following embodiment, all technology realized based on the utility model content all belong to scope of the present utility model.
As shown in figure mono-and figure bis-, cold shock gas distributor is positioned at the center of beds, i.e. the center of reactor body, and on have aperture and make cold shock gas require in radial or tangential distribution reactor reaction zone according to reaction; Cold shock gas distributor makes cold shock gas pass in reactor body by the difference that perforate distributes.
Cold shock gas distributor is connected with thermometric and cold shock air regulating device, can be made reactor body entirety by thermometric and cold shock air regulating device, be lowered the temperature uniformly;
Thermometric and cold shock air regulating device comprise cold shock gas control valve and temp measuring system composition, and form regulating loop.
Inert gas control valve, unstripped gas control valve, reclaim gas product control valve and temperature measuring equipment and constitute thermometric and cold shock air regulating device with the gas control valve of temperature association.By the adjustment of thermometric and cold shock air regulating device, the amount controlling to pass into cold shock gas reaches the effect regulating temperature.In thermometric and cold shock air regulating device, inert gas control valve can regulate the input quantity of inert gas, because native system Raw gas, gas product are flammable explosive gas, so inert gas can play protective gas in the present system, dilute the effect of unstripped gas and cooling; In thermometric and cold shock air regulating device, unstripped gas control valve can regulate the output quantity of unstripped gas, pass into control cold unstripped gas output quantity can not feed change gas composition and play cooling effect, generally in the micro-super lower use of temperature; In thermometric and cold shock air regulating device, reclaim gas product control valve can regulate the output quantity reclaiming gas product, pass into the output quantity controlling to reclaim gas product, cooling can be played to a certain extent, suppress the effect of unstripped gas positive reaction, generally exceeding temperature comparatively relative superiority or inferiority use, inert gas should be input into simultaneously; Reclaiming gas product can be one or more of gas product.
Embodiment 1: illustrate for synthesis gas methanation reaction process,
General containing H in the synthesis gas that coal obtains through gasifying, changing, purify
2, CO, CH
4, H
2o, C
2h
6and inert gas, concrete gas composition is relevant with the gasifying process adopted with the kind of coal.Inert gas in synthesis gas is generally N
2and Ar.Synthesis gas methanation reaction is multiple reaction, comprises main reaction and side reaction.Draw the rising with reaction temperature by calculation of thermodynamics, the standard thermodynamic equilibrium constant of each reaction reduces all piece by piece.
Therefore, should reaction temperature be avoided more than 800K for the reaction of CO preparing natural gas by methanation as far as possible, preferably control at below 700K.Methanation reaction is conducive to the carrying out of methanation reaction at about 600K.
New and old process ration (effect)
The reaction process that current coal process for producing natural methanation both at home and abroad mostly adopts high temperature multistage fixed bed reactor to connect.(as Fig. 1) traditional handicraft Raw gas is by entering the first methanator after preheater preheats, unstripped gas is catalytic exothermic reaction in the first methanator, temperature of reaction kettle is controlled by turnover doses (namely controlling the conversion ratio of gas product), reaction gas temperature is reduced by heat exchanger after gas product extraction, then enter next reactor, repeat above process; Reactor is due to by the restriction of reaction temperature, and unstripped gas can not complete reaction in reactor, can only use realize target product by multistage reactor series connection.
The utility model passes into cold shock gas by cold shock gas distributor in reactor makes reactor temperature be effectively controlled, and ensures reaction gas more complete reaction in reactor.The utility model passes into the gas product that cold shock gas is cold conditions.In cold shock gas regulating system, regulate the cold conditions gas product flow after pressurization, thus reduce the concentration participating in hydrogen and the carbon monoxide reacted, reach the target reducing reaction rate, thus effectively control reaction temperature.
Embodiment effect:
Carry out in the first paragraph reactor of reaction all in methanation reaction process in following examples, first paragraph methanator is with total volume 5m
3for example.Reaction correction data is shown in following form.
1. table 1 conventional methanation reactor reaction major parameter
Table 2 conventional methanation reactor key component conversion ratio and yield situation
| Component | Conversion ratio % | Yield % |
| H 2 | 41.58 | - |
| CO | 90.36 | - |
| CO 2 | 29.1 | - |
| CH 4 | - | 65.1 |
Table 3 novel methanation reactor reaction major parameter
Table 4 key component conversion ratio and yield situation
| Component | Conversion ratio % | Yield % |
| H 2 | 45.39 | - |
| CO | 95.1 | - |
| CO 2 | 35.43 | - |
| CH 4 | - | 71.78 |
As can be seen from above two groups of data, adopt novel methanation reactor with conventional methanation reactor when keeping reaction feed component, inlet amount etc. consistent, its operating temperature obtains effectively control and conversion ratio and yield all obtain certain lifting.
It is simple, practical that the good effect of this patent is embodied in structure, can be applicable to gas phase catalysis exothermic process, comprise the reaction of gas phase hydrogenation, gas-phase dehydration, hydrogen and the methanation of carbon monoxide, synthesis gas synthesizing methanol etc.
Claims (4)
1. the adiabatic reactor of a temperature controllable, comprise reactor body (1), cold shock gas distributor (2) and thermometric and cold shock air regulating device (3), it is characterized in that: cold shock gas distributor (2) is arranged on the center of reactor body (1), cold shock gas distributor (2) is arranged on the center of beds, and cold shock gas distributor (2) is connected with cold shock air regulating device (3).
2. the adiabatic reactor of temperature controllable according to claim 1, it is characterized in that: described thermometric and cold shock air regulating device (3) comprise cold shock gas control valve, temperature measuring equipment, and wherein temperature measuring equipment is connected with cold shock gas control valve and forms regulating loop.
3. the adiabatic reactor of temperature controllable according to claim 1, is characterized in that: the structure of described cold shock gas distributor (2) is coiler-type or straight pipe type.
4. the adiabatic reactor of temperature controllable according to claim 1, is characterized in that: arrange beds in described reactor body (1) centre position, cold shock gas distributor (2) is arranged on the center of beds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520154401.2U CN204564098U (en) | 2015-03-18 | 2015-03-18 | A kind of adiabatic reactor of temperature controllable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520154401.2U CN204564098U (en) | 2015-03-18 | 2015-03-18 | A kind of adiabatic reactor of temperature controllable |
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| Publication Number | Publication Date |
|---|---|
| CN204564098U true CN204564098U (en) | 2015-08-19 |
Family
ID=53856792
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520154401.2U Expired - Fee Related CN204564098U (en) | 2015-03-18 | 2015-03-18 | A kind of adiabatic reactor of temperature controllable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204564098U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104689764A (en) * | 2015-03-18 | 2015-06-10 | 昊华(成都)科技有限公司 | Heat insulation reactor with controllable temperature |
| CN113070003A (en) * | 2021-04-20 | 2021-07-06 | 河南理工大学 | Reactor for preparing methane from coke oven gas or synthesis gas |
-
2015
- 2015-03-18 CN CN201520154401.2U patent/CN204564098U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104689764A (en) * | 2015-03-18 | 2015-06-10 | 昊华(成都)科技有限公司 | Heat insulation reactor with controllable temperature |
| CN113070003A (en) * | 2021-04-20 | 2021-07-06 | 河南理工大学 | Reactor for preparing methane from coke oven gas or synthesis gas |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 |